Galvanometer module and electronic device

Abstract

The application discloses a galvanometer module and electronic equipment. The galvanometer module comprises a shell, a driving assembly and a light-emitting chip. The shell comprises a containing cavity. One side of the shell is provided with an opening part in communication with the containing cavity. The other side of the shell is provided with a through hole part in communication with the containing cavity. The driving assembly and the light-emitting chip are arranged in the containing cavity, and the driving assembly is connected with the light-emitting chip. The driving assembly drives the light-emitting chip to vibrate. The galvanometer module further comprises a lens and a one-way valve. The lens is arranged at the opening part. The one-way valve is arranged at the through hole part and blocks the through hole part. The one-way valve is configured to enable the gas in the containing cavity to flow to the outside of the containing cavity through the one-way valve.

Description

Technical Field

[0001] This application relates to the field of haptic feedback technology, and more specifically, to a galvanometer module and electronic device. Background Technology

[0002] In recent years, with the development of science and technology, galvanometer structures have been increasingly widely used in many electronic products, such as consumer electronics, medical devices and smart wearable devices.

[0003] Currently, existing galvanometer structures suffer from poor sealing and insufficient waterproofing; this reduces the reliability of electronic products containing galvanometer structures and affects their working quality.

[0004] Therefore, a new technical solution is needed to improve the sealing and waterproof performance of the galvanometer structure. Summary of the Invention

[0005] One objective of this application is to provide a new technical solution for a galvanometer module and electronic equipment.

[0006] According to a first aspect of this application, a galvanometer module is provided, the galvanometer module comprising:

[0007] A housing, the housing including a receiving cavity, one side of the housing having an opening communicating with the receiving cavity, and the other side of the housing having a through hole communicating with the receiving cavity;

[0008] A driving component and a light-emitting chip are provided, both of which are disposed within the receiving cavity, and the driving component is connected to the light-emitting chip, wherein the driving component drives the light-emitting chip to vibrate;

[0009] A lens, wherein the lens is disposed over the opening;

[0010] A one-way valve is disposed at the through-hole and blocks the through-hole; the one-way valve is configured such that gas in the receiving cavity flows to the outside of the receiving cavity via the one-way valve.

[0011] Optionally, the galvanometer module further includes a hollow shaft disposed within the receiving cavity, with one end of the hollow shaft communicating with the through hole; the one-way valve is disposed within the hollow shaft.

[0012] Optionally, a sealant is provided between the one-way valve and the hollow shaft.

[0013] Optionally, the galvanometer module further includes a protective cover, which is disposed on the end of the hollow shaft away from the lens.

[0014] Optionally, the driving component includes a driving coil, a circuit board, and a magnet. The driving coil is electrically connected to the circuit board, the magnet is disposed next to the coil, and the light-emitting chip is connected to the magnet.

[0015] Optionally, the magnetic component includes a first magnet and a second magnet, the cross-sections of the first magnet and the second magnet are both semi-circular, the first magnet and the second magnet enclose a magnetic space, and the driving coil is located within the magnetic space.

[0016] Optionally, the housing and the hollow shaft are integrally injection molded structures.

[0017] Optionally, the housing has a glue groove near the opening, and the glue groove is filled with sealant; the lens covers the glue groove.

[0018] Optionally, the galvanometer module further includes a light-shielding tape with a light-transmitting hole; the light-shielding tape is attached to the side of the lens away from the housing, and the light-shielding tape is attached at the junction of the lens and the housing, and the light-transmitting hole is used to expose the light-emitting chip.

[0019] According to a second aspect of this application, an electronic device is provided, the electronic device comprising a galvanometer module as described in the first aspect.

[0020] According to one embodiment of this application, the galvanometer module can create a vacuum environment in the housing cavity by setting a one-way valve, so that the lens can be tightly attached to the opening of the housing, and the lens can achieve a firm and reliable sealing effect.

[0021] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0023] Figure 1 This is an exploded view of a galvanometer module according to an embodiment of this application;

[0024] Figure 2 This is a partial structural schematic diagram of a galvanometer module according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the housing structure in a galvanometer module according to an embodiment of this application. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the housing structure in a galvanometer module according to an embodiment of this application. Figure 2 .

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing; 101. Through hole; 102. Opening; 103. Adhesive groove; 2. Drive assembly; 21. Circuit board; 22. First magnet; 23. Second magnet; 3. Light-emitting chip; 4. Lens; 5. One-way valve; 6. Hollow shaft; 7. Protective cover; 8. Light-blocking tape; 81. Light-transmitting hole; 9. Protective film; 10. First gasket; 11. Second gasket. Detailed Implementation

[0029] Various exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0034] Reference Figures 1-4As shown, according to one embodiment of this application, a galvanometer module is provided. The galvanometer module includes a housing 1, a driving assembly 2, and a light-emitting chip 3. The housing 1 includes a receiving cavity, one side of which has an opening 102 communicating with the receiving cavity, and the other side of which has a through hole 101 communicating with the receiving cavity. The driving assembly 2 and the light-emitting chip 3 are both disposed within the receiving cavity, and the driving assembly 2 is connected to the light-emitting chip 3, and the driving assembly 2 drives the light-emitting chip 3 to vibrate. It also includes a lens 4 and a one-way valve 5. The lens 4 is disposed at the opening 102; the one-way valve 5 is disposed at the through hole 101 and blocks the through hole 101; the one-way valve 5 is configured such that gas in the receiving cavity flows to the outside of the receiving cavity via the one-way valve 5.

[0035] In the galvanometer module provided in this application embodiment, laser light can be emitted from the light-emitting chip 3, and the light-emitting chip 3 can vibrate at a certain working frequency under the driving action of the driving component 2, thereby ensuring the imaging quality of the electronic device.

[0036] When packaging the galvanometer module provided in this embodiment, the lens 4 is connected to the housing 1, and the lens 4 covers the opening 102 of the housing 1. Then, the gas inside the housing 1's cavity is extracted to the outside of the cavity via a one-way valve 5; and due to the check valve 5's backflow prevention function, the gas will not flow from the outside of the cavity into the cavity via the one-way valve 5. This creates a vacuum environment inside the housing 1's cavity, allowing the lens 4 to fit tightly against the opening 102 of the housing 1, achieving a secure and reliable seal. Therefore, in the galvanometer module provided in this embodiment, the lens 4 provides a good sealing and waterproofing effect for the drive assembly 2 and the light-emitting chip 3 disposed within the cavity.

[0037] Reference Figure 1 As shown, in one embodiment, the galvanometer module further includes a hollow shaft 6, which is disposed within the receiving cavity, and one end of the hollow shaft 6 is connected to the through hole portion 101; the one-way valve 5 is disposed in the hollow shaft 6.

[0038] In this specific example, the hollow shaft 6 allows for easy installation and fixation of the one-way valve 5, and the hollow shaft 6 can also function as a suction pipe, facilitating the extraction of gas from the containment cavity to the outside of the containment cavity.

[0039] In one embodiment, a sealant is provided between the one-way valve 5 and the hollow shaft 6.

[0040] In this specific example, filling the space between the one-way valve 5 and the hollow shaft 6 with sealant, such as threadlocker, can effectively prevent air leakage at the connection between the one-way valve 5 and the hollow shaft 6, thereby improving the sealing performance of the galvanometer module.

[0041] Reference Figure 1 As shown, in one embodiment, the galvanometer module further includes a protective cover 7, which covers the end of the hollow shaft 6 away from the lens 4.

[0042] In this specific example, after the cavity of the housing 1 is evacuated, the protective cover 7 is placed on the end of the hollow shaft 6 away from the lens 4. The protective cover 7 can protect the one-way valve 5 and prevent dust, debris and other objects from entering the hollow shaft 6 and causing adverse effects on the one-way valve 5.

[0043] Reference Figure 1 As shown, in one embodiment, the driving component 2 includes a driving coil, a circuit board 21, and a magnet. The driving coil is electrically connected to the circuit board 21, the magnet is disposed next to the coil, and the light-emitting chip 3 is connected to the magnet.

[0044] In this specific example, the circuit board 21 can be, for example, an FPC; the circuit board 21 is connected to an external power source to provide alternating current to the coil, and the interaction between the coil and the magnet causes the magnet to vibrate, which in turn drives the light-emitting chip 3 to vibrate. Optionally, a slot can be provided on the housing 1 to fix the FPC.

[0045] Reference Figure 1 As shown, in one embodiment, the magnetic component includes a first magnet 22 and a second magnet 23. The cross-sections of the first magnet 22 and the second magnet 23 are both semi-circular. The first magnet 22 and the second magnet 23 enclose a magnetic space, and the driving coil is located within the magnetic space.

[0046] In this specific example, the first magnet 22 and the second magnet 23 have opposite magnetic properties, and the coil is set within the magnetic space formed by the first magnet 22 and the second magnet 23, which can enhance the magnetic force between the magnet and the coil.

[0047] Optionally, in embodiments including the hollow shaft 6, the coil can be wound around the outer wall of the hollow shaft 6 to facilitate the setting of the coil; then the hollow shaft 6 with the coil wound around it is placed within the magnetic space formed by the first magnet 22 and the second magnet 23.

[0048] For example, the hollow shaft 6 includes a first section with a smaller diameter and a second section with a larger diameter. The first section is located close to the lens 4, and the coil can be wound around the outer wall of the first section, while the one-way valve 5 is located inside the second section. Of course, the hollow shaft 6 can also have the same diameter at all points along the axial direction.

[0049] In one embodiment, the housing 1, the first magnet 22, and the second magnet 23 are integrally injection molded structures.

[0050] In this specific example, the housing 1, the first magnet 22, and the second magnet 23 are integrally injection molded to achieve high reliability. In the embodiment including the hollow shaft 6, the housing 1, the first magnet 22, the second magnet 23, and the hollow shaft 6 are integrally injection molded.

[0051] In one embodiment, the housing 1 has a glue groove 103 near the opening 102, and the glue groove 103 is filled with sealant; the lens 4 covers the glue groove 103.

[0052] In this specific example, the lens 4 and the housing 1 are bonded together by the sealant filled in the adhesive groove 103; when the cavity is in a vacuum environment, the lens 4 and the housing 1 will be firmly bonded together and there will be no bonding failure.

[0053] Reference Figure 1 As shown, in one embodiment, the galvanometer module further includes a light-shielding tape 8, which has a light-transmitting hole 81. The light-shielding tape 8 is attached to the side of the lens 4 facing away from the housing 1, and is positioned at the junction of the lens 4 and the housing 1; that is, a portion of the light-shielding tape 8 is attached to the lens 4, and another portion is attached to the housing 1. The light-transmitting hole 81 is used to expose the light-emitting chip 3. Furthermore, when the galvanometer module is not in operation, a protective film 9 can be further attached to the light-shielding tape 8. The light-shielding tape 8 and the protective film 9 can further provide a sealing and dustproof function.

[0054] Optionally, the galvanometer module further includes a first gasket 10 and a second gasket 11. The first gasket 10 is disposed between the light-emitting chip 3 and the first magnet 22, and the second gasket 11 is disposed between the light-emitting chip 3 and the second magnet 23. The first gasket 10 and the second gasket 11 serve as insulation, for example, both the first gasket 10 and the second gasket 11 are made of rubber.

[0055] According to another embodiment of this application, an electronic device is provided, which includes the galvanometer module described above. The electronic device may be, for example, a laser marking machine.

[0056] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0057] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A galvanometer module, characterized in that, The galvanometer module includes: The housing (1) includes a receiving cavity, one side of the housing (1) has an opening (102) communicating with the receiving cavity, and the other side of the housing (1) has a through hole (101) communicating with the receiving cavity. A driving component (2) and a light-emitting chip (3) are provided in the cavity, and the driving component (2) is connected to the light-emitting chip (3). The driving component (2) drives the light-emitting chip (3) to vibrate, and the light-emitting chip (3) can emit laser light. Lens (4), the lens (4) is disposed at the opening (102); A one-way valve (5) is disposed at the through hole (101) and blocks the through hole (101); the one-way valve (5) is configured such that the gas in the receiving cavity flows to the outside of the receiving cavity via the one-way valve (5); The galvanometer module also includes a hollow shaft (6), which is disposed in the receiving cavity and one end of the hollow shaft (6) is connected to the through hole (101); the one-way valve (5) is disposed in the hollow shaft (6); the drive assembly (2) includes a drive coil and a magnet, the drive coil is wound around the outer wall of the hollow shaft (6), and the hollow shaft (6) with the drive coil wound around it is disposed in the magnetic space of the magnet; A sealant is provided between the one-way valve (5) and the hollow shaft (6).

2. The galvanometer module according to claim 1, characterized in that, The galvanometer module also includes a protective cover (7), which is placed on the end of the hollow shaft (6) away from the lens (4).

3. The galvanometer module according to claim 1, characterized in that, The driving component (2) includes a circuit board (21), the driving coil is electrically connected to the circuit board (21), the magnet is disposed next to the coil, and the light-emitting chip (3) is connected to the magnet.

4. The galvanometer module according to claim 3, characterized in that, The magnetic component includes a first magnet (22) and a second magnet (23). The cross-sections of the first magnet (22) and the second magnet (23) are both semi-circular. The first magnet (22) and the second magnet (23) enclose a magnetic space, and the driving coil is located within the magnetic space.

5. The galvanometer module according to claim 1, characterized in that, The housing (1) and the hollow shaft (6) are integrally injection molded structures.

6. The galvanometer module according to claim 1, characterized in that, The housing (1) has a glue groove (103) near the opening (102), and the glue groove (103) is filled with sealant; the lens (4) covers the glue groove (103).

7. The galvanometer module according to claim 1, characterized in that, The galvanometer module also includes a light-shielding tape (8), which has a light-transmitting hole (81). The light-shielding tape (8) is attached to the side of the lens (4) away from the housing (1) and is placed at the junction of the lens (4) and the housing (1). The light-transmitting hole (81) is used to expose the light-emitting chip (3).

8. An electronic device, characterized in that, The electronic device includes a galvanometer module as described in any one of claims 1-7.

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